Your forum username:
Do you already have an account?
Forgot your password?
  • Log in or Sign up


    Welcome to Sky User - The Unofficial Support Forum for everything Sky! - Proudly helping over 65k members.


    Advertisement

    Results 1 to 8 of 8

    Just got activated

    This is a discussion on Just got activated within the Sky Broadband help forums, part of the Sky Broadband help and support category; Hi I just got activated today, and I realise Sky do a 10 day activation period but my line stats ...

    1. #1
      Lethal's Avatar
      Lethal is offline Sky User Member
      Exchange: Canterbury
      Broadband ISP: Other ISP
      Router: Non Sky Router
      Sky TV: Sky Basic
      Join Date
      Sep 2011
      Posts
      14
      Thanks
      0
      Thanked 0 Times in 0 Posts

      Just got activated

      Hi

      I just got activated today, and I realise Sky do a 10 day activation period but my line stats have changed significantly from when I was on O2.

      Previously I had 38dB down attenuation and ~6 SNR, but on the sky router it says 35dB attenuation and 18 SNR.

      Is this right?


    2. Advertisement
    3. #2
      Scubbie's Avatar
      Scubbie is offline Sky User Moderator
      Exchange: 02392
      Broadband ISP: Sky Fibre Unlimited
      Router: Sky Q Hub ER110
      Sky TV: Sky+HD box
      Join Date
      Mar 2010
      Location
      Near Portsmouth
      Posts
      27,903
      Thanks
      810
      Thanked 2,195 Times in 2,065 Posts

      Re: Just got activated

      Your telephone line will have been moved from O2's kit to Sky's kit at the telephone exchange. It is possible that they have used some better quality cable for your new connection, but this isn't always the case.

      As for Line Attenuations, I have been noticing recently that the newest router from Sky appears to be reporting a lower Line Attenuation than previous Sky routers on the same line. This can be for a number of reasons, but it appears that the figures are slightly lower than normal.

      As for the noise margin, each ISP has a different method that they adopt for configuring the lines. In Sky's case they are quite conservative and have adopted a default target for the Noise Margins to be around 7dB. Generally you won't see a 6dB Noise Margin on a Sky connection.

      This results is a slightly slower connection than O2, but one that is normally quite stable. This isn't to say that you didn't have a stable line previously, but it does mean that a higher percentage of Sky customers will have a stable line.

      Sky Fibre Unlimited Pro: Connected at 80,000 kbps / 20,000 kbps
      Previous ADSL2+ Speed 19999 kbps 1153 kbps, Line Attenuation 17.5 db 6.9 db, Noise Margin 7.5 dB 8.7 dB
      Speedtest: 17.15MB/s 0.97Mb/s Ping 31 ms

    4. #3
      Lethal's Avatar
      Lethal is offline Sky User Member
      Exchange: Canterbury
      Broadband ISP: Other ISP
      Router: Non Sky Router
      Sky TV: Sky Basic
      Join Date
      Sep 2011
      Posts
      14
      Thanks
      0
      Thanked 0 Times in 0 Posts

      Re: Just got activated

      Thanks for your reply.

      Will the SNR go down? It is currently synced at 4Mbps which I understand they do at the start.

    5. #4
      Scubbie's Avatar
      Scubbie is offline Sky User Moderator
      Exchange: 02392
      Broadband ISP: Sky Fibre Unlimited
      Router: Sky Q Hub ER110
      Sky TV: Sky+HD box
      Join Date
      Mar 2010
      Location
      Near Portsmouth
      Posts
      27,903
      Thanks
      810
      Thanked 2,195 Times in 2,065 Posts

      Re: Just got activated

      The initial connection speed is always around 4096Mb/s d/l & 605Mb/s upload (unless your line cannot handle this speed).

      Any adjustments will go up or down depending on the available noise margin.

      If you have a noise margin of 18dB, then you should have room for an increase in you connection speed. I can't say much more because we need to see all the figures for both the upstream & downstream connection.

      Sky Fibre Unlimited Pro: Connected at 80,000 kbps / 20,000 kbps
      Previous ADSL2+ Speed 19999 kbps 1153 kbps, Line Attenuation 17.5 db 6.9 db, Noise Margin 7.5 dB 8.7 dB
      Speedtest: 17.15MB/s 0.97Mb/s Ping 31 ms

    6. #5
      timc's Avatar
      timc is offline Sky User Member
      Exchange: Hadleigh, Essex
      Broadband ISP: BT Infinity
      Router: Billion 7800N
      Sky TV: Sky+HD box
      Join Date
      May 2011
      Location
      Hadleigh,Essex
      Posts
      299
      Thanks
      3
      Thanked 21 Times in 21 Posts

      Re: Just got activated

      The difference in attenuation is most likely because initially you'll be on ADSL rather than ADSL2+ - the latter increases the attenuation by 2-3dB.

    7. #6
      Lethal's Avatar
      Lethal is offline Sky User Member
      Exchange: Canterbury
      Broadband ISP: Other ISP
      Router: Non Sky Router
      Sky TV: Sky Basic
      Join Date
      Sep 2011
      Posts
      14
      Thanks
      0
      Thanked 0 Times in 0 Posts

      Re: Just got activated

      Hmm even so, it's a huge jump from the 6-8dB SNR we got with O2.

      Full line stats:
      ADSL Link Downstream Upstream
      Connection Speed 4096 kbps 512 kbps
      Line Attenuation 35.0 dB 22.0 dB
      Noise Margin 18.3 dB 14.0 dB

    8. #7
      Scubbie's Avatar
      Scubbie is offline Sky User Moderator
      Exchange: 02392
      Broadband ISP: Sky Fibre Unlimited
      Router: Sky Q Hub ER110
      Sky TV: Sky+HD box
      Join Date
      Mar 2010
      Location
      Near Portsmouth
      Posts
      27,903
      Thanks
      810
      Thanked 2,195 Times in 2,065 Posts

      Re: Just got activated

      Once the DLM process starts (it can take up to 3 or 4 days to kick in) you speed will increase and the noise margins will fall.

      You are also on ADSL1 at the moment, so you Line Attenuation will increase a little as well.

      Sky Fibre Unlimited Pro: Connected at 80,000 kbps / 20,000 kbps
      Previous ADSL2+ Speed 19999 kbps 1153 kbps, Line Attenuation 17.5 db 6.9 db, Noise Margin 7.5 dB 8.7 dB
      Speedtest: 17.15MB/s 0.97Mb/s Ping 31 ms

    9. #8
      Isitme's Avatar
      Isitme is offline Sky User Moderator
      Exchange: Bannockburn
      Broadband ISP: Sky Fibre Unlimited
      Router: Sky Hub SR102
      Sky TV: Sky+ HD
      Join Date
      Dec 2006
      Location
      Central Scotland
      Posts
      34,131
      Thanks
      64
      Thanked 1,641 Times in 1,602 Posts

      Re: Just got activated

      Hmm even so, it's a huge jump from the 6-8dB SNR we got with O2.
      But what was your speed with O2? Much higher than the speed you have now, if your line was configured properly. I would say you will finish with a speed of 11-12Mb and a noise margin of 7db.

      TomD


      Please note the views and recommendations in my posts are my own and in no way reflect the views of SkyUser.


      Useful Utilites

      http://www.nirsoft.net/utils/wifi_information_view.html/ TCPOptimiser /Test Socket

      Note - When downloading always select the Custom install or you will end up with stuff you don't want.





     

     

    Tags for this Thread

    Posting Permissions

    • You may not post new threads
    • You may not post replies
    • You may not post attachments
    • You may not edit your posts
    •  
    SkyUser - Copyright © 2006-2017. SatDish and NewsreadeR | SkyUser is in no way affiliated with Sky Broadband / BSkyB
    RIPA NOTICE: NO CONSENT IS GIVEN FOR INTERCEPTION OF PAGE TRANSMISSION